Product Description
The HumiSeal® UV20GEL is a high-performance, fast-curing UV gel formulated for staking and vibration protection in PCB and electronic applications. This thixotropic, non-sag urethane acrylate bonds effectively to engineered plastics and metal substrates while maintaining high flexibility. Featuring dual-curing capabilities, it provides rapid UV curing and a secondary moisture cure mechanism, ensuring full curing even in shadowed areas. Its excellent adhesion and mechanical shock protection make it an ideal solution for electronics and industrial bonding.
Features of HumiSeal® UV20GEL
- Curing rapidly under UV light with a secondary moisture cure for shadowed areas.
- Providing strong adhesion to polycarbonate, PVC, PET/RPET, metals, and PCB components.
- Offering exceptional vibration and shock resistance for durability.
- Maintaining a thixotropic, non-sag consistency for precise application.
- Fluorescing under UV light for easy inspection.
- Being RoHS & REACH compliant and compatible with HumiSeal UV-curable conformal coatings.
Applications of HumiSeal® UV20GEL
- PCB & Electronics Protection: Used for component staking and vibration dampening.
- Plastic Bonding: Ideal for PET/RPET clamshell bonds and engineered plastic assemblies.
- Mechanical Shock Protection: Applied in high-impact environments to secure components.
- General Industrial Bonding: Suitable for various metal and plastic substrate adhesion.
- Selective Coating & Conformal Coating Compatibility: Works seamlessly with HumiSeal UV-curable coatings.
Prostech offers specialty materials (adhesives, tapes, thermal interface materials, insulating materials, sealants, PCB protection materials, …) along with manufacturing solutions. We proudly serve a wide range of industries and are an authorized distributor for leading global manufacturers of industrial materials and equipment. Our product range is designed to deliver customized solutions that address each customer’s unique needs. With years of experience and a successful project history, we are confident in our ability to provide comprehensive material solutions. These solutions effectively tackle the challenges manufacturers face. To explore our full product catalog, simply click here. Our dedicated team is ready to assist with: Moreover, Prostech ensures the safe and accurate global delivery of all materials, including “dangerous goods”, in compliance with legal regulations. For personalized technical support or to receive a quotation, please contact us today.About Prostech
Uncured Properties
| Property | Value |
|---|---|
| Solvent Content | 100% Solids |
| Chemical Class | Acrylated Urethane |
| Appearance | Opaque White |
| Shelf Life (DOM) | 6 months |
| Density (g/mL) | 1.08 |
| Viscosity | Non-sag Thixotropic Paste |
| Thixotropic Index | > 5.5 |
Cured Properties
| Property | Value |
|---|---|
| Hardness, Shore A (Initial) | 10 |
| Hardness, Shore A (10 days post cure) | 60 |
| Tensile Strength (MPa) [psi] | 4.8 [700] |
| Elongation (%) | > 400 |
| Moisture Resistance | Excellent |
| Surface Resistivity (Ohm) | 1.4 × 10¹² |
| Volume Resistivity (Ohm*cm) | 8.5 × 10¹³ |
| Dielectric Withstand Voltage | Pass @ 1500 V (per MIL-I-46058C) |
| Peak Operating Temperature (°C) | -40 to 125 |
| Polycarbonate Lap Shear (psi) | 200 |
| PVC Lap Shear (psi) | 450 |
| Glass Transition Temperature (Tg, per TMA) (°C) | 31 |
| Coefficient of Thermal Expansion (ppm/K, above Tg) | 239 |
| Comparative Tracking Index (CTI, 3 & 5 mm thick) | 600 V |
| Flammability at 3mm | UL 94 H-B |
